Trace: • sticks
wiki:donuts:sticks
Answer:
Move one of the sticks in the first plus sign and put it in front of the first stick
Take this stick:
| + || + ||| + ||||
^
and put it here:
-| - || + ||| + ||||
^
Now you have -1 - 2 + 3 + 4 = 4
wiki/donuts/sticks.txt · Last modified: 2013/06/24 14:12 by jmb438